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Good Molecules

Good Molecules Niacinamide with Ectoin Serum.

About this product

A lightweight serum formulated with 10% niacinamide designed to reduce the appearance of pores and control excess oiliness and sebum production.

Full ingredients

Water, Niacinamide, Dipropylene Glycol, Glycerin, 1,2-Hexanediol, Betaine, Tocopherol, Hydrogenated Lecithin, Xanthan Gum, Sorbitan Isostearate, Diphenyl Dimethicone, Triethylhexanoin, Polyglyceryl-10 Oleate, Hydroxyethyl Acrylate/​Sodium Acryloyldimethyl Taurate Copolymer, Ethylhexylglycerin, Polysorbate 60

More from Good Molecules 21 products · Guru Score 93% →

Guru Score

82%

Yay

4 experts · Moderate agreement

What the gurus are saying

A 10% niacinamide serum that visibly reduces pores and controls oiliness earns praise as an excellent pick for anyone with combo or oily skin. The formula is deliberately simple (just niacinamide and little else), which keeps the price genuinely affordable, and that simplicity makes it a solid entry point for people just starting skincare. One job done well, and done affordably.
Synthesized from 4 expert reviews · most recent take April 2026

What they liked

  • Reduces pore appearance
  • Reduces oiliness
  • Suits combo skin

What they flagged

    Nothing. None of the experts who reviewed it raised a problem.

    Best for

    Type

    Key actives

    NiacinamideVitamin E

    Formula notes

    Fragrance-freeNo drying alcohol

    Where to buy

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    What the gurus are saying.

    Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

    All takes Yay takes Nay takes Mixed takes Hide sponsored
    ✓Yay
    "It's very hydrating, but really nice for skin, sensitive skin. It has no fragrance in it. Good Molecules has some really nice stuff that they've released recently. And this is a great one. Certainly worth checking out if you have skin that is on the sensitive side. [...] This one's got 0.5% ectoine. Ectoine, I think in small amounts it's beneficial, large amounts it's beneficial. It's not quite as dependent as certain other ingredients where you want the exact percentage at the exact pH."
    All 4 takes from No BS Beauty
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    "It's got a very thick texture than I was anticipating. Feels [...] nice and hydrating. I think if you have oilier skin I think you might really actually appreciate this texture because it feels like it absorbs quite quickly even with a decent amount. [...] It's got kind of a natural or a slight matte finish once it soaks in. [...] So we basically got the three ingredients to focus on here: niacinamide, ectoin, and vitamin E. No scent or anything else. It does soak in quite well."
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    "This contains 5% niacinamide and 1% ectoin. It's got a pretty short ingredient list and [...] it's really nice, it's lightweight and it'll work well for most skin types. It has a nice seramy gel texture, which is kind of my favorite texture. I [...] love those serums that have a gel feel to them, but then when you start to smooth it out it covers a little bit and it ends up going such a long way."
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    "The Good Molecules Niacinamide with Ectoin Serum which contains obviously niacinamide, it contains acetyl glucosamine and then ectoin. It's got a nice serum texture to it which is nice and I'm just starting to test this one out because this one's pretty new."
    Ectoin: The Skincare Ingredient You’re Not Using (But Should Be) + My Favorite Products
    "It's very hydrating, but really nice for skin, sensitive skin. It has no fragrance in it. Good Molecules has some really nice stuff that they've released recently. And this is a great one. Certainly worth checking out if you have skin that is on the sensitive side. [...] This one's got 0.5% ectoine. Ectoine, I think in small amounts it's beneficial, large amounts it's beneficial. It's not quite as dependent as certain other ingredients where you want the exact percentage at the exact pH."
    ✓Yay
    "If you want something that's great for combo skin, the Good Molecules Niacinamide Serum is excellent. It's formulated with 10% niacinamide and really helps reduce the look of pores. This is beautiful."
    ✓Yay
    "This is such an awesome serum if you just want a basic, very simple way of reducing oiliness and sebum production on your skin while still harnessing the benefits of niacinamide. Good Molecules is a really good brand, particularly if you want super affordable products, and this one is a great, simple, and affordable solution for keeping oiliness at bay without breaking the bank."
    ✓Yay
    "Good Molecules also has an affordable niacinamide product. You definitely don't want to overspend here, since niacinamide isn't a very expensive ingredient to formulate with."
    Sponsored

    What the evidence says.

    Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

    Niacinamide

    Niacinamide has evidence behind it for redness, uneven tone and supporting the skin barrier, and it is usually well tolerated even by skin that reacts to most things.

    Source: DermNet

    Vitamin E

    Vitamin E is an antioxidant, and it is often in a formula to keep the other ingredients stable rather than as the active itself. It pairs well with vitamin C, though on its own the evidence for visible change is limited.

    Source: NIH, National Library of Medicine

    Frequently asked.

    What is Good Molecules Niacinamide with Ectoin Serum?

    A lightweight serum formulated with 10% niacinamide designed to reduce the appearance of pores and control excess oiliness and sebum production.

    Is Good Molecules Niacinamide with Ectoin Serum worth it?

    Yes. All 4 gurus who reviewed it give it their stamp of approval, for a Guru Score of 82%.

    What is Good Molecules Niacinamide with Ectoin Serum's Guru Score?

    Good Molecules Niacinamide with Ectoin Serum holds a Guru Score of 82%. That is our read on how warmly the experts talk about it, based on the verdicts of 4 expert reviewers we have collected.

    Who is Good Molecules Niacinamide with Ectoin Serum best for?

    Good Molecules Niacinamide with Ectoin Serum is generally suited to oily skin.

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